The chemical extraction using
hexanes on the algae and fungi from which the amino acids are sourced leads to the potential of hexane being present in the formula and this is what leads to parents questioning whether they want them included in the formula.
But, some manufacturers use DHA and ARA extracted from laboratory - grown fermented
algae and fungus and processed with
hexane, known as DHASCO and ARASCO, although not identified as such
on the list of ingredients.